I noticed this several times already:
In CW-questions e.g. here (active user) or answers e.g. here (deleted user) not the current (or anonymized) user name but rather the one that was active at the time the post was edited is shown.
For example:
I think it would be less confusing if the current username was displayed and in the interest of those who decided to leave it would be great if their usernames were removed from CW as well.
Since I should ask a question: why is it the way it is?
Edit: While I'm at it: Why is in this question
displayed?